Apparatus for extracting butter-fat from milk.



l H. D. COOKE. & A. PGRNANDER.

APPARATUS TOR EXTRACTING BUTTER TAT PROM MILK.

APPLIGA'IION FILED MAL.20,1907.

@l Patented Apr, 6, 1909.

3 SHEETS-SHEET l.

H. D. COOKE & A. PORNANDBR.

APPARATUS FOR EXTRAVGTING BUTTER FAT FROM MILK* APPLIJATION ITLBD MAR.20,1907. 917,008. Patented Apr. 6, 19094 3 SHEETS-SHEET 2.

Fing: f.,

, @wit/Menace; H- enfer@ H. D. COOKE L A. FORNANDER. APPARATUS FOR XTILAGTING BUTTER PAT FROM MILK.

APPLC .TION FILED MAR.20.1907.

Patented Apr. 6, 1909.

3 SHEETS-SHEET 3 Fig; @Z @9 @l @intonaco HENRY D.- CGOKE, OY? MUNMOUTE BEACH, NEW'XEESY,

@fili mit" aankaarten resumenes, or New YGRK, N. Y.; SAD FORNANDER ASSlGNOR TS AMERICA@ FARM RGDUCTS CQMPNY: GF NEW YORK, Y., A CORPORATON GF NEW XERSEY.

- NQ.. cineos.

ne "scarna-raf arrasar Patented April d, lt?.

application :filed March fait, lit-S7. derlei his. sedette.

To all 'whom 'it muy concern: Be it known that we, HENRY D. Coors, citizen of the United Sta-tes, and a resident ot' Monmouth Beach, in the State of New proveinents in Apparatus for Eiitractingh` llutter-Fat trom Milk, of which the following is a specilication, reference being hadto in threaded vcngngement..

the accompanying drawings, forming a part hereof.

'lhe object of Jthis inventionis to provide l an apparatus 1n which nulli may be con-- verted as a whole into a comparatively thick homogeneous liquid niass or emulsion, and further, to provide means whereby, after such conversion has taken place, the buttel tat' may be extracted and removed from the emulsied milk without transferring such milk :troni the chamber or vessel in which the einulsiication has vbeen etl'ected. ln other words, the invention' consists not only in providing incline vfor cmulsiiying milk but in the provision of an apparatus for extracting the fat contained therein4 in' one continuous operation.

T he improvements will be more fully described in connection with the accompanying drawings in which an apparatus forni ing` one of the practical embodiments of the invention is illustrated.

ln said drawings: Figure l is a View in vertical central section of the apparatus. Fig. .2 is a similar view upon api-.ine taken at right angles to that o Fig. l. Figs. 3 and al are respectively plan views of the opposing faces of two disks which may be employed in eniulsit'ying the milk. Figs. 5 and G 4are.respectively a plan rie f 'and a view in a vertical section of another disk which may also he so employed, and, Figs. 'Z and 8 are respectively a front and end elevation of a hand wheel t'or operating and controlling' the `milk valve. i

The apparatus is provided with what may he-tcrinctl a working chamber which may he formed ot two castings c1 and 7) suitably bolted together se as 'to be easily dctarhed,

thc lower casting b resting upon a ,base or stand c with which it is illustrated as being ln .said chamber and :preferably in the .upper portion thereof and near Lthe plane where the castings c and e join, are two disks d `and c which are vmounted 1to-rotate a substantially horizontal plane. The res estive shafts f and g upon which these isks are mounted are journaled `in hearings is, and formed upon the castings c and `l) res actively and extendingn into the working c amber, as clearly illust ated in the drawings.

The milk is introduced into a receiving vessel j which surmounts the working chamber and thence is delivered between the disks i al and e through the shaft j which is made hollow for this purpose, the delivery of the milk between the disks beingcontrolled b y valve may be varied to permit the flow of may require, by a graduated hand-Wheel Z mounted upon'the receiving lreservoir y' and in operative enga 1'ement with a sliding rod m to which the va ve 7c is secured. The disks d and c between which the milk is delivered substantially at the center thereof, have their opposingl faces or surfaces roughened and .for this purpose are preferably termed with cuts n ot such a nature as to produce sharp edges whereby, as the disks rotate, ,they will produce a shearing action upon the milk or the fat globules contained. therein. is illustrated in Figs. 3 and Alv, these cuts are formed with a rotating tool having its periphery oblique to its radius. -The sharp edges upon the disks may be otherwise formed however and in fact other means than sharp edges may be provided upon the disksl to produce the disturbance in the niilk necessary to eniulsiiy the saine. ln the present case, these edges are ar tinged upon the. disks so that they extend toward the periphery of the same and in a direction slightly oblique to the radial. Moreover, in one et the disks, in the present case in the upper disk which is illustrated in Fig. 3, radial grooves or channels are provided ex tending from the center in order to start the milk from the center outward toward tls poriphery'fof the disks'. lt will be obvious l that as the niilk is worked through the disks, it will be disposed substantially in a thin pend upon the' proximity of the opposing i tacos ut the disks upon which the cuts are milk to be more or less rapid, as conditions' a suitable valve ic. The position of this layer, and the thinness ot' the layer will dework the milk toward the formed. This degree of proximity may be controlled conveniently by making one of the shafts, as the shaft g for` instance, longitudinally movable in its bearings and for this purpose said shaft may be mounted.

grooves are sutiicient to effect the emulsification of the milk and the grooves themselves periphery of the disk.

The word disk, as used herein, should.v be understood to refer to any element. which may be provided with a surface to effect the desideratum referred to herein and it is obvious that such an element need not necessarily shape.

'lhe disks are adapted to be rotated very rapidly in opposite directions, pulleys g being provided upon the shafts f and g for, this purpose. ln a machine of the character illustrated, these disks may be driven at an angular velocity of at least 8,000 rotations per minute. This' operation effectively emulsifies the -milk that is, breaks up the fat globules and apparently distributes the butter fat in minute particles throughout the mass which, as it drops from the disks into the bottom of the chamber, is A somewhat thickened and constitutes a homogeneous liquid mass. In the bottom of this chamber are suitable heating means such as a hot water coil r through which this mass is uniformlyheated. This causes the butter fat to rise tothe top of theimass in the form of a liquid. To Apermit this butter-fat which has risen to the top 4of the mass to be drawn ofi" without interference from the emulsied milk as it drops from the disksand without the disturbance which would otherwise be caused by the close. proximity of the 'rapidly revolving disks, a hood a is rovided just beneath the disks and into this ood the butter fat rises and maybe conveniently drawn oft' by a suitable cock-controlled tube t. The residue or remainder of the emulsitied4 milk after the fat has been separated therefrom may be allowed to Aflow out of a suitable pipe u leading from the bottom of the chamber, and this pipe u is provided with an upstanding pipe v which rises tothe normal height of the liquid inthe chamber and then is bent over and downwardly again, a vent w being provided in the top. .In this way the residue ofthe milk is constantly discharged while the liquid in the chamber is maintained constantly at the normal height. Moreoverfpthe disturbance from the rapidly revolving disks to the convenient removal be offy anymathematically precise 4 of the butter fat may be further obviated by the provision of a shield a: above the hood s, which .shield may be in the form of a sieve.

The operation of 'the apparatus will be understood from vthe foregoing, as it has been Clearly referred to in connection with the description of the various parts of the apparatus.

It will be' seen that the apparatus may be kept continuously in operation, the butter fat being removed through a cock at the end of its draw-olf pipe while the other ingredients of themilk are constantly discharged through the pipe u.

Various changes may be made in the construction of the apparatus, some of which have already been referred to, andthe in-4 vention is accordingly not limited to an apparatus characterized by the structure shown and described.' ,v

-We claim as our invention 1. In an apparatus `for extracting butter fat from milk, the combination of two disks having substantially flat roughened faces and mounted to rotate, and means to deliver the milk'between the disks.

E2. In an apparatus for extracting butter. fat from milk, the combination of two disks having substantiallyl flat vroughened .faces and mountedv to rotate near together, and means to deliver the milk between the disks.

Y3. In an apparatus for extracting butter fat from milk, the combination of two disks having substantially' flat roughened faces and mounted to rotate, and means to deliver 10,0 the milk at the center of the disks.

4. Inan apparatus for extracting butter fat from milk', the combination of two disks having roughened faces, and shafts upon which the disks are mounted to rotate, one` 105 of `said :shafts being hollow to deliver the` milk/'between I.the disks.

5. In an apparatusfor extracting butter.

.fat from milk, the combination of two disks having roughened faces and mounted to rotate in a horizontal lane, and a hollow shaft to rotate the upper isk and deliver the milk between the disks. c

6. In an apparatus for extracting butter fat from milk, the combination ofA two disks having substantially fiat opposing faces mounted to rotate and having cuts in said faces, and means tointroduce the milk bev tween `the disks.-

7. In an apparatus for extracting butter fat from milk, the combination of two `disks mounted to rotate-and having their opposing faces cut toform sharp edges substantially in the planes of said faces, and means to introduce the milk'between the disks.

8. In an apparatus for extracting butter fat from milk, the combination of two vdisks mounted to rotate and having theiropposing faces cut to form sharp edges extending toward the periphery of the disks at a slight 130 fat from milk, the combination of two disks,

iiounted to rotate and having cuts in their l opposing faces and at least one of the disks haiing radial grooves extendingfrom the center thereot', and means to introduce milk between the disks.

10. In an apparatus for extracting` butter fat from milk, the combination ot a chamber, means to emnlsify the milk in the upper part of the chamber and means to heat the emulsified milk in the lower part of the chamber.

11. In an ap aratus for ezi'tractinfir butter fat from milk, t ie combination of a c iamber, rotating disks in the upper part thereof and a heating coil beneath.

12. In an apparatus for extracting butter -iat from milk, the combination of a chamber, rotating disks therein, means to heat the lower part of the chamber, and a hood beneath the rotating disks for the t'at to rise in.

,13. vin an apparatus for extracting butter tat from milk, the combination of a chamber, means in the upper part thereof to emulsit'y the milk, means in the lower part thereof to heat the emulsiticd milk, means to 4shield the enuilsitied milk and fat from .the eniulsityiug` means, and means to remove the separated fat.

14. In an apparatus for extracting butter t'at from milk, the combination of a chamber, a disk in the upper part thereof, a. vertie-l hollow shat't upon 'which said disk is mounted, a disk underneath the first named didi'. a vertical shaft upon which the second named disk is mounted, and means to raise :uid louter one ofthe shafts to adjust the position ot' the disks with respect to each other.

l5. tu an apparatus t'or extracting butter ."ut from milk. the combination of a` milk reservoir, a chamber below the saine, rotating means to emulsit'y thev milk in said chamber, a hollow s hat't t'or said means leading from the reservoir, and a valve`e0ntr0l,

lingr the tlow ot' milk from said reservoir into sind hollow shaft.

IG. tu an apparatus for extracting butter to deliver the l t'at from milk, the combination of means to convert the iiii-lk into an emulsion, and means to heat the emulsion.

17. ln an apparatus t'or extracting butter l'at vfrom milk, the eomhimition of a eli-.nnbei'` means to introduce milk into said chamber; and disks therein adapted to rotate in opposite directions to emulsit'y the4 milk into a homogeneous liquid mass.

lb. ln an apparatus for extractingr butter fat t'rom milk, the combination of a chamber, means lo introduce milk into said'chain ber; and m lans to emulsif)v the milk therein into a homogeneous liquid mass.

lt). ln an apparatus for extracting butter tat from milk, the combination ol a cham ber` means` to introduce milk into said chamber; and means arranged in the upper part of the chamber to emulsil'y the milk into a homogeneous liquid mass.

2t). ln an apparatus for extracting butter t'at from milk, the combination of a chainber. means to introduce milk into said elianr ber, means to emulsify the milk into a homogeneous liquid mass, and means to separate the t'at from said mass.

2l. ln an apparatus' for extracting butter 'fat t'roni milk, the coinbinationfof a chamber, means to introduce milk into said chainbcr, means to emulsify the milk into a homogeneous liquid mass, and means for continuously removing the fat from the chamber.

2i. ln an appai-atus for extracting butter tat' from milk, the combination of a chamv ber, means t'or supplying milk to said chamber, means in said chamber to emulsify the milk into a homogeneous liquid mass, means for continuously removing the fat from said chamber, and means tor continuously removing the residue from said elian'iber, substantially as described.

lliisspecitication signed and witnessed this lltli day ot' March, A. D. 1907.

HENRY l). COOKF. ALFRED FOR N A. i YDlllt.

Signed in the presence of Aainnosr: L. U'Sniza, Lucius l". Vannini. 

